baber/WOPTO huggingface dataset:
Patent GB-1185871-A (GB)
Title: Improved Hydraulic Lifting Jack
Inventor: RUDKIN FRANK
IPC: B66F3/42
Filed: 1967-01-18
Abstract: 1,185,871. Hydraulic jacks. LAKE & ELLIOT Ltd. 30 Nov., 1967 [18 Jan., 1967], No. 2706/67. Heading B8J. An hydraulic lifting jack comprises a base 2 with a hollow cover 1, a mounting plate 4 fixed on the base 2 with two spaced bores 4A, 4B respectively mounting an upstanding cylinder 5 and a housing 6. A ram 5A is movably mounted in the cylinder 5 and carries an extension screw 5C in a threaded bore 5B. An operating plunger 6A is slidably mounted in the housing 6. Space 8E below the ram 5A is in communication with the interior of the housing 6 through passage 4C in the plate 4, slots 9A, 9B respectively in the cylinder 5 and housing 6 being provided for this purpose. The cover 1 forms a reservoir for hydraulic fluid, the normal level being indicated by the dot-dash line in Fig. 5. Fluid is drawn from the reservoir through a suction valve body 13A when the plunger 6A is raised by raising a handle 19 inserted into a handle socket 16 pivoted on a pin 16B in a bracket 17 pivoted on a pin 16D on the cover 1. The handle 19 has a cut-out flat 22 normally arranged over the top of the plunger 6A so that the latter clears a spring-loaded ball 11 at the bottom of its normal stroke. On reciprocation of the plunger 6A fluid is forced past the ball 11 under the ram 5A to raise the latter. To release pressure and lower the jack the handle 19 in the down position shown is rotated axially when the full diameter of the handle 19 engages the top of the plunger 6A. This produces over-riding of the non-return action of the ball 11 allowing fluid to flow from under the ram 5A via slot 9A, passage 4C, slot 9B past the ball 11 and through a slot 14 in the plunger 6A and a part 12A back into the reservoir.
Patent GB-573723-A (GB)
Title: Improvements in or relating to the manufacture of polymerisable unsaturated acids
IPC: C07C51/25
Filed: 1941-02-28
Abstract: In the production of unsaturated acids by oxidation with molecular oxygen of acrolein and its a -substitution products, a diluent is added before distillation of the product in such quantity as to reduce the concentration of the acid that at the distillation temperature polymerization of the acid is substantially prevented. When a solvent is used in the oxidation, it may be distilled off before the distillation, or the solvent and the diluent may be the same substance.  Preferably the diluent is not more volatile than the acid to be made; if the diluent is more volatile, it may be made to entrain the acid without allowing its quantity in the still to fall below the necessary amount.  Suitable diluents are anisol, phenetol, diamyl ether, acetic, chloracetic, butyric and isobutyric acids, amyl propionate and acetate, ethylidene diacetate, xylene, isopropyl benzene, tetrachlorethane, chlortoluene, pentachlorethane, and ketones.  Alcohols such as cyclohexanol, methyl cyclohexanol and furfuryl, tetrahydrofurfuryl and amyl alcohols may be used if the temperature is below the esterification temperature.  Preferably the distillation is effected at reduced pressure.  Any unoxidised aldehyde or low-boiling solvent present may be distilled off before the acid or together with the acid.  In examples: (1) and (2) acrolein dissolved in acetic acid is oxidized with molecular oxygen in presence of vanadium pentoxide; the unchanged acrolein is removed by gaseous oxygen, the mixture diluted with anisol or acetic acid, filtered and distilled; (3) a mixture of acrolein, anisol and acrylic acid is oxidized, more anisol is added and distillation is effected in vacuo at 42 DEG  C.; (4) a mixture of acrolein and ethylidene diacetate is oxidized, more ethylidene diacetate is added and the mixture distilled.  Specification 560,166 is referred to.
Patent GB-599439-A (GB)
Title: Improvements in or relating to removal of slag from induction furnaces
IPC: H05B6/20
Filed: 1945-02-03
Abstract: 599,439. Electric induction furnaces. TAMA, M., and TAMA, M. Feb. 3, 1945, No. 2766. Convention date, Dec. 31. 1943. [Class 39 (iii)] An induction furnace 1 of the submerged resistor type for light metals has a secondary loop comprising channels 5, 6, preferably vertical and horizontal, of different dimensions and current densities so as to cause non- metallic particles of slag to be deposited only in the more easily accessible vertical channels 6. The preferred relationship between the cross-sectional areas of the channels 5, 6, is 3 : 1, for which it is claimed that no slag is deposited in the horizontal bottom channel 5. The slag particles are deposited in the vertical channels 6 which may be tapered towards the furnace hearth to increase the current density and the deposition of slag, at points 7, where removal is more conveniently carried out by the use of concentric cutting tools of graded diameters, inserted from above while the furnace remains charged. Specifications 571,304 and 575,780 are referred to.
Patent GB-510250-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B33/00
Filed: 1938-01-29
Abstract: 510,250. Cameras for colour photography. KAPELLA, Ltd., and REASON, R. E. Jan. 29, 1938, No. 2860. [Classes 98 (i) and 98 (ii)] In a camera having one or more semi-transparent pellicle mirrors to divide the light into separate beams, the shutter is resiliently supported in a chamber the interior of which is separated from the space containing the mirror or mirrors to prevent the radiation into such space of sound waves set up in the chamber by operation of the shutter. As shown, the shutter H is mounted on an annular disc G of soft rubber supported by a plate E<2> carrying the rear member F<2> of the objective, the front member F' of which is carried on a second plate E' both plates being supported in a slide D movable for focusing. The controls for the shutter and diaphragm project from the front of the slide. The camera may be of the type described in Specification 445,799.
Patent GB-261695-A (GB)
Title: Improvements in means for increasing the safety of blasting operations
IPC: F42D1/04
Filed: 1926-02-01
Abstract: 261,695. Transvaal Chamber of Mines. Nov. 19, 1925, [Convention date]. Blasting detonators.-A detonator 3, Fig. 1, in mounted in the bore of a plug 4 of wood or other suitable non-explosive material so as to be completely enclosed laterally; and the plug with the detonator therein is inserted into the borehole after the latter has been loaded with the explosive charge 14, Fig. III. The hole is then tamped in any known or suitable way.
Patent GB-302518-A (GB)
Title: Improvements in railroad ballast spreaders
IPC: E01B27/02
Filed: 1928-01-30
Abstract: 302,518. Dehn, F. B., (Jordan Co., 0. F.). Jan. 30, 1928. Surface-levelling machines.-A railroad ballast plough or spreader is provided with a front plough 7 having adjustable side aprons 8, main spreader wings 17 adjustable independently of the aprons, and a rail cleaner or guard 71 arranged between each wing and apron. The aprons 8 are hinged at 57 to the front plough and carry flexible tail-pieces 53 against which the main wings may bear when opened out. The structure comprising the front plough and aprons can be raised and lowered by a pressure cylinder 10 and the aprons can be fastened against the sides of the vehicle frame by gravity catches 59. Each main spreader-wing is furnished with a cutter bar 27 and comprises a braced structure pivoted at 18 to a plate 15 itself hinged to a member 13. Each wing is raised and lowered about its pivot 18 by a link 20, including a power cylinder 21 which is pivoted to a plate 19 also hinged to the member 13. The member 13 is slidable in upright frame members 12 by means not shown. To clear the ballast from the immediate vicinity of the rail, a guard or cleaner 71 is supported on hinges 69 and is raised and lowered by a power cylinder 78, a pressure-operated spring latch being provided to hold the guard in the adjusted position.
Patent GB-192702-A (GB)
IPC: F02M5/02
Filed: 1923-01-31
Abstract: 192,702. Pallas-Apparate Ges. Jan. 31, 1922, [Convention date]. Spray carburettors.-In carburettors of the type in which fuel or an emulsion of fuel and air is drawn into an injector tube which discharges into a mixing chamber preferably at the narrowest part thereof, and the mixing chamber can be rotated relatively to the float chamber so as to assume a horizontal or vertical position either to the right or left side of said chamber, the injector tube is in one piece non-rotatably connected with the mixing chamber and serves as a support for the float chamber. Air enters the main passage or mixing chamber a at q and the mixture is throttled by a valve o. An in. jector tube c is screwed into the part a' and delivers mixture to the mixing chamber at r. The tube passes through a part h formed integrally with the float chamber b from which fuel passes through a duct e to a nozzle tube d and through holes i into an annular groove p communicating through holes k with the interior of the injector tube. A pin g in the part a<1> is adapted to enter one of two holes h<1>, h<3>, in one face or h<2>, h<4> in the other face of the part h, the holes in each face being at an angular distance of 90‹. In any of the positions of the mixing chamber a, mixture for slow running is conveyed through a longitudinal groove l on the exterior of the injector tube and a passage m to a nozzle n. The injector tube may be inserted from either side of the part h which is secured on the tube by a nut f.
Patent GB-1272183-A (GB)
Title: Improvements relating to timepieces
IPC: G04B37/02
Filed: 1970-01-21
Abstract: 1,272,183. Clocks and watches. SUWA SEIKOSHA K. K. Jan. 21, 1970 [Jan. 24, 1969], No.2949/70. Heading G3T. The sealed case of a timepiece is filled with an inert gas at a pressure between atmospheric and 1À2 kg cm<SP>-2</SP> and having a maximum oxygen content of 5% by volume. The inert gas may be one or a mixture of the following: nitrogen, carbon dioxide, helium, neon, argon, krypton, xenon, or other unspecified gases which are inert to the usual timepiece materials.
Patent GB-1292007-A (GB)
Title: A method of producing an article by sintering and subsequent local compression and a synchronizer ring
IPC: B22F3/11
Filed: 1970-01-21
Abstract: 1292007 Making synchronizer rings TOYOTA CHUO KENKYUSHO KK 21 Jan 1970 [31 Jan 1969] 3064/70 Heading B3A [Also in Division C7] A sintered metal synchronizer ring is made by compacting the rim 42 of the sintered ring 40 in a die 10 with punch 20 and then machining teeth in the densified rim. The ring 40 may be made by sintering at 1100‹ C. a powder mixture of Fe-0À5% C or Fe-2% Cu. The sintered ring is heated to 900‹ C. prior to compaction in die 10.
Patent GB-1189945-A (GB)
Title: Motor Vehicles with Hydrostatic Power Transmission
Inventor: ISSIGONIS ALEXANDER ARNOLD
IPC: B60K17/30
Filed: 1968-01-20
Abstract: 1,189,945. Vehicle hydrostatic transmission arrangement. BRITISH MOTOR CORP. Ltd. 10 Jan., 1969 [20 Jan., 1968], No. 3153/68. Heading B7H. In a motor vehicle having an engine-driven pump delivering pressurized hydraulic fluid to hydrostatic motors 2 installed in at least one pair of coaxial steerable road wheels, each wheel has a motor carried by a swivel pin 4 which is mounted on the outer ends of upper and lower wheel control arms 9, 10 containing fluid flows ducts 22, which convey pressure fluid to and from the motor 2, the pressure fluid at the same time lubricating the suspension and steering bearings, the outer ends of the control arms being provided with trunnion bearings 7, 8 and provision being made to collect any fluid that leaks through the bearings 7, 8 and return it to a tank from which the pump is supplied. Pressure fluid entering the inner pivot of the upper control arm passes to the motor through passages 19, 22, 24, annular passages 25, 26, and passages 27, 28 and 29 to the motor and returns through passages 30 to 36 to the lower arm and thence to the tank. The bearings are provided with seals and associated leakage collecting chambers 58, 59, 66 and 42, 43 which communicate with passages 47 in the control arms and thence to the tank. Leakage from the motor passes through passages 62, 63 to the chamber 59.
Patent GB-283749-A (GB)
Title: Improvements in door stops
IPC: E05C17/20
Filed: 1927-02-03
Abstract: 283,749. Barker & Co. (Coachbuilders), Ltd., and Penney, S. Feb. 3, 1927. Operating and controlling doors by springs and checks; stays.-A bar 9 pivoted to an angle-plate 8 on the door 2 is slidably mounted in a swivelling sleeve 3 mounted on trunnions 4 in a bracket 5 of an angle-plate 6 secured to the pillar 1, a spiral spring 11 forming an elastic buffer device between the sleeve and a nut 10 on the end of the rod. The bar slides in a recess 1<x> in the door post.
Patent GB-679869-A (GB)
Title: Improvements in or relating to the regeneration of phosphoric acid pickling liquid
Inventor: BIRD PHILIP LORRAINE
IPC: C23G1/36
Filed: 1950-02-07
Abstract: A phosphoric acid pickling bath is regenerated by aerating the pickling liquid by forming an intimate mixture of the liquid and free oxygen-containing gas wherein one element of the mixture is dispersed as small particles in a medium consisting of the other element.  The liquid may be sprayed as fine droplets into air or very small bubbles of air may be bubbled through the liquid, e.g. from a sintered alumina screen, to obtain the greatest area of liquid-air contact. The regeneration may be carried out continuously by withdrawing pickling liquid from the bath, aerating, heating to say 80 DEG C, filtering to remove precipitated ferric phosphate, cooling to the working temperature of 55 DEG C and returning to the bath. Alternatively or in addition to heating, the liquid may be subjected to violent agitation during or after aeration.
Patent GB-158565-A (GB)
Title: Improvements in and relating to composite metal articles
IPC: B23K1/00
Filed: 1921-01-26
Abstract: 158,565. British Thomson-Houston Co., Ltd., (Assignees of Steenstrup, C.). Jan. 26, 1920, [Convention date]. Right to Patent relinquished. Dynamo-electric machines; hoops and rings, ordnance; plates and sheets; turbines.-Metallic objects are soldered by an alloying metal, such as copper, nickel, copper alloy, &c., while they are held in very intimate contact so that practically no free copper &c. remains. This is ensured by (1) shaping the parts 7, 8, Fig. 1, of a turbine, for instance, to fit accurately, and bonding as by arc welding a.t 14 while forced together by an hydraulic clamp 9, 10, which is then removed, (2) winding a hot steel strip 16, Fig. 2, in the manufacture of guns, rings, &c., on a mandrel 17, spot welding at intervals, and then removing from the mandrel, (3) fitting non-magnetic steel bars 32 and driving them into corresponding tapered recesses of a rotating inductor 30, Fig. 8, as described in Specification 9637/10, [Class 35, Dynamo-electric generators &c.], and caulking, or (4) merely clamping as in joining steel sheets or stamped sheet-metal turbine parts. The alloying metal may be placed in slots in the faces to be joined, or on top of the assembled parts and the whole heated in hydrogen or other reducing atmosphere whereby the interstices are filled with an alloy of copper &c. with the metal of the objects joined. Relative movement of the strips or sheets may be prevented by an embedded wire or strip 29, Fig. 4. The weld 14 may be removed, and the objects finished by machining. A pack or ring of metal thus formed may be worked or heat treated without destroying its constitution. Specifications 27628/06 and 5232/10, [Class 83 (iv), Metals, Working], also are referred to. The Specification as open to inspection under Sect. 91 (3) (a) states also that the alloying metal may be introduced as a powder or by electroplating. This subject-matter does not appear in the Specification as accepted.
Patent GB-579639-A (GB)
Title: Improvements in and relating to potters' jolleys
IPC: B28B1/02
Filed: 1945-02-09
Abstract: 579,639. Potters' jolleys. BOULTON, Ltd., W., BIRCHALL, F. A., and FARR, C. Feb. 9, 1945, No. 3282. [Class 87 (i)] Means for attaching a profile holder to a jolley arm comprise a split bracket d having a socket or recess j to receive the profile holder, the division e on the bracket being closed to grip the profile holder by a bolt f, and the bracket d having a shank b which engages in a recess a in the jolley arm and is secured therein by a tapered peg c. The bracket d is cut away at h, i, to prevent rotation of the bolt f while allowing rotation of the nut g. The jolley arm can be operated either mechanically or by hand.
Patent GB-305221-A (GB)
Title: Improvements in or relating to the distribution of electric power at the working face of mines and similar workings
IPC: H02H11/00
Filed: 1929-01-31
Abstract: 305,221. Siemens - Schuckertwerke Akt-Ges. Feb. 3, 1928, [Convention date]. Installation conductor arrangements; protective arrangements. - Electrical energy is supplied at the working face of mines and the like by a main cable which is laid at the working face and to which apparatus is connected through short branch cables, the main cable being capable of disconnection at a gallery switch. The main cable 16 is divided into lengths which may be connected together by plugs and sockets 20 and by branch plugs 21 to which the branch cables leading to the machines 23 are connected. The main cable is connected to the mains 11 through a gallery switch 12 which comprises overload releases 13 and a voltage release 14. The circuit of the latter is fed through a transformer 15 and includes an auxiliary conductor 17 and earth conductor 19 comprised in the main cable. The branch plugs 21 include overhead releases 24 and a voltage release 25 the contacts of which are in the circuit of the gallery voltage release 14. 'The circuit of each voltage release 25 is completed through auxiliary conductors in the branch cable and the casing of the motor or machine switch. The contacts 27 of the voltage release are normally controlled so that the whole system at the working face may be rendered dead from any branch plug, and they may also be held closed by mechanical locks until the circuit is re-established when resumed operation is desired. Reference has been directed by the Comptroller to Specification 285,182, [Class 38 (v), Electric switches &c.].
Patent GB-761386-A (GB)
Title: Improvements in pneumatic tires and method of manufacture
IPC: B60C1/00
Filed: 1954-02-04
Abstract: 761,386. Laminated articles. DAYTON RUBBER CO. Feb. 4, 1954 [March 13, 1953], No. 3308/54. Class 140. [Also in Group XXXIV] A tyre casing comprises a tread portion composed of an oil-extended high Mooney viscosity synthetic rubber-like composition, a carcass portion of plied fabric impregnated with a rubber-like composition affected by oil and a barrier of oil-resistant synthetic rubber-like composition positioned between said tread portion and said carcass portion whereby migration of the oil extender of the former into the latter is arrested. As shown, a pneumatic tyre casing 10 comprises an inner carcass portion of rubber-impregnated fabric 11 consisting of parallel cord, wrapped around beads and applied on a bias and an outer tread portion 12 composed of synthetic rubber containing an oleaginous plasticizer, between which there is interposed a thin barrier layer 17 composed of an oil - resistant neoprene composition having approximately the same physical properties as the tread portion. The tread portion may consist of a butadiene-styrene composition plasticised with petroleum oil. The barrier layer may consist of a neoprene composition. The oil-containing rubber-like material is not present in the sidewall portion 13 below a point half-way between the base of the bead 15 and the crown of the tread 20. Where the whole of the outer rubber-like portion of the tyre is composed of oil-containing material the barrier layer should completely (not shown) enclose the carcass portion.
Patent GB-233430-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: C08K5/05
Filed: 1924-02-08
Abstract: 233,430. Mackay, H. A. Feb. 8, 1924. Emulsions, making. - Bituminous emulsions, for use for example in road-making, for coal and similar briquettes, and for coating stone, wood, metal, fencings, buildings, or for impregnating concrete or roofing felt and the like, are prepared by mixing the melted or liquid bituminous material, such as Mexican asphalt or tar, with a small proportion of an emulsifying agent comprising cholesterol and adding hot water. A proportion of fatty acid may be used together with the cholesterol. In examples Mexican asphalt is melted in a jacketed tank and oleic acid and cholesterol or wool-fat alone stirred in. Hot caustic soda and hot water are finally added with agitation. Caustic potash, sodium or potassium carbonate, soda-ash, or borax may be employed instead of caustic soda. Apparatus of the colloid mill type or that described in Specification 232,683 may be employed for the emulsification. Specifications 6618/05, 24135,/06 and 202.021 also are referred to.
Patent GB-208427-A (GB)
Title: Improvements in or relating to gas or other cooking ovens
IPC: A47J37/00
Filed: 1923-03-05
Abstract: 208,427. Grant, C. de V., and Williams, Sir W. W. March 5, 1923. Steam, diffusing in ovens.-A device for supplying dry steam in a gas or other cooking oven comprises a steam-generator 1 arranged in the oven and provided with a longitudinally-extending superheating chamber 2. In the form shown, steam passes to the chamber 2 by an opening 3 and is delivered through a nozzle 4; a combined screw-cap and relief-valve 5 is provided. The vessel may be supplied by means of flanges 6, or by a cradle, sliding on rods 7 extending across the oven fixed at the ends in plates 9 resting on the protecting webs 10 over the burners 11; the position of the vessel may thus be adjusted in accordance with the rate of heating required. The rods 7 may be telescopically-adjustable to various widths of ovens. Alternatively, one or more generators may be arranged at the side of the oven on brackets, or the generator may be fixed in the oven instead of removable. Heat-conducting fins or plates may be provided on the generator vessel.